Heddle frame for looms



May 17, 193s.

J. J. KAUFMANN HEDDLE FRAME FOR LOOMS Filed April l, 1936 :FW/1 ...QL

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All

Patented May 17, 1938 learrf:NTA oFFicE `2,117,612I HEDDLEFRAME Fon LooMsv John Jacob Kaufmann, Elkins Parli, Pa., assignor to Steel Heddle Manufa'cturii1gV Company,

Philadelphia, Vania Pa., a corporationof' Pennsyl- Applmtiunv April 1 1, 1936,4 serial No- '11,996`

6 claims;

This invention relates to heddle-frames for looms, and it relates-more particularly to certain improvements in the devices used in'such iframes.

for supportingthe heddle barsintermediate their ends.

The principal object of the present invention is toprovide an improved form of device for supporting the `heddle `bars of. loom harness frames intermediate their; ends.

A further` objectof the invention istoprovide` against accidentaldisengagement, and in the use4 of which Wear of the supporting device and of the heddle supporting bar at the point `of support will be reduced to a minimum.`

The nature and charactertistic features ofthe present invention will be more readily understood from the following description takenin connection with the accompanying drawingl forming part hereof, in which:

Figure 1 is an elevational view of a heddle frame provided with heddle bar supporting devices em-r bodying the main features of the presentinvention;

Fig. 2 is a fragmentary detail thereofenlarged;

Fig. 3 is a vertical section taken approximately on the line 3-3 of Fig. 2;

Fig. 4 is a horizontal section, still further enlarged, taken on the line 4 4 of Fig. 3;

Fig. 5 is a side elevation of a bolt member constituting one of the principal elements of thedevice, the other parts being removed therefrom;

Fig. 6 is a perspective view of a slidable locking sleeve, detached, constituting another of the elements of the device;

Fig. 7 is a View similar to Fig. 2 illustrating a modiiied form of the invention, the same being provided `With positive locking means; and

Fig, 8 is a vertical section taken approximately on the line S-B-oi Fig. 7.`

Referring to the drawi1ig,the heddle frame there shown comprises top and bottom rails lil,L usually made oi vvood,` and connected at their ends by means of the metallic side strips Il. Extending from end to end of the heddleframe andvarranged near the` top and bottom rails Hlffare the (Cl. Righ-92)` supporting bars I2. on which the heddles I3 are mounted in theordinary manner.

Thedevices comprisingthe present invention aremounted atsuitable portions ofthe top and bottomrails l0, extending invvardly therefrom. Each of these devicesincludes a bolt member 20 havingy a shank 2l, the end of which may be threaded as at (22 in amanner similar to that of an. ordinaryV wood screw-for mountingthe same in thewrail, althoughit Will` be readily under- 10L stood-that` thedevices maybe secured to the rails in any, other` preferred, manner.

'I 'he bolt member 2D is also provided with a head portion 'Rf-having` flat sides, the portion adjacent the shankgof the bolt member being sub- 15` stantially` rectangular in cross section, and slidably mounted thereonis la complementally formed sleeve` member 3I= preferably made from sheet metal'punchedand formed to they proper shape.

The-shank portion of the bolt member is pro- 20 videdwth. struck-up lugs 2li-.to provide shoulders against which one end ofthe coil spring 25 bears. The other end 'of the coil spring bears against the sleeve member 30 which is mounted on the head portion 2.3.-ofr thecbolt member, the spring im- 25 pelling thissleeve member 3u toward the end of thehead-portion 23.v of the` bolt member.

The head portion 234 of` thebolt member is also providedwith a widened portion 26, thus providingfa shoulder.'g2'l\vvhichI serves as a limit for 30 the movementof the sleeve member, preventing the` same from beingimpelled too far toward the end ofthe head portion 23 of the boltmember. The portion iof theV sleeve member 30 which extends around the narrow part of the head portion 35 23` of the bolt memberis-so. formed as to make a snug, slidingit` with respect thereto.

The widenedpart 2620i the head portion 23 of the bolt memberis=also=provided With a recess 28: for` the reception ofthe heddle supporting bar 40 I2. The sleeve member.- 3l'lis also` provided with parallel-extensions-S'L disposed on each side of thehead-portion` 230i the bolt member and each provided with a recess 32 adapted to `engage one edgefof; the-heddlersupporting bar` l2: when the 45 sleeve member 3U. is` in the normal operative position? tohold the -heddlesupporting bar I2v Within the Vrecessw2ii: inthe head portion 23-oftne bolt member.

The. sleeve member `30 is also.providedat the 50` endfagainst' which the` coil spring 25.abuts,-vvith sidewise extending ears `33, one of these being provided-on'eachtside of said sleeve member 30.

In -theuse of: the device, Whenever it is desired toinsert orremovetheheddle supporting bar l2, 55

the ears 33 of the sleeve member 30 are engaged by the ngers of the operator and the sleeve member 3l) thereby withdrawn, so that the ends of the recessed extensions 3l are brought to a position to free the recess 26 in the head portion 23 of the bolt member; whereupon the heddle supporting bar I2 may be freely inserted or removed, as the case may be. Whenthe heddle supporting bar l2 is in its proper position within the recess 28 of the head portion 23 of the bolt member and the sleeve member 30 is released by the operator, the recessed extensions 3l of said sleeve member 30 will engage the heddle bar on both sides of the head portion 23 of the bolt member, thus providing a lock on each side of said head portion. The provision of the two ears 33 on each side of the sleeve member 30 enables the operator to control the same quite easily, it being noted that the pressures and forces exerted are symmetrical at all times, so that said sleeve member 30 will be freely operable and will not tend to stick or jam.

In the form of the device shown in Figs. 'l and 8 of the drawing the struck-up lug portions 24 on the shank 2l of the bolt member are omitted, and in lieu thereof the shank portion 2| of the bolt member is provided with a machine screw thread 29 upon which a thumb nut 40 is complementally threaded. The thumb nut 40 is recessed as at 4l for reception ofV the end of the coil spring 25, this recess being of suiicient extent so that when the thumb nut 4D is Screwed down, the said coil spring 25 will be contained entirely within the same, and the rim of the thumb nut 40 will bear directly against a washer 42 which is interposed between the lower end of the spring 25 and the upper end of the sleeve member 30. In this manner the sleeve member 30 may be positively locked in position by means of the thumb nut 40 to the end that accidental disengagement of the heddle supporting bar l2 from the head portion 23 of the bolt member will be prevented.

I claim:

1. In a heddle frame, the means for supporting the heddle bars intermediate their ends, comprising a bolt member mounted in the heddle frame rail, said bolt member having a `head portion provided with flattened sides and a recess in which the heddle supporting bar is positioned, the part of the head portion of said bolt member in which the recess is located being widened thereby to provide a shoulder, a sleeve member slidably mounted on said head portion limited in its movement toward the end of said head portion by said shoulder, and a spring for impelling said sleeve member to locking position, said sleeve member being made of a single piece of sheet metal shaped to provide a portion extending entirely around a part of the head portion of the bolt member and portions at one end engaging the heddle supporting bar t0 lock the same within the recess in the head portion of the bolt member.

2. In a heddle frame, the means for supporting the heddle bars intermediate their ends, comprising a bolt member mounted in the heddle frame rail, said bolt member having a head portion provided with'flattened sides and a recess in which the heddle supporting bar is positioned, the part of the head portion of said bolt member in which the recess is located being widened thereby to provide a shoulder, a sleeve member slidably mounted on said head portion, said Sleeve member having a portion for contact with said shoulder to limit the movement of the sleeve toward the end of said head portion, and a spring for impelling said sleeve member to locking position, said sleeve member being made of a single piece of sheet metal shaped to provide a portion extending entirely around a part of the head portion of the bolt member and extensions at one end on each side of the head portion of the bolt member provided with recesses to engage the heddle supporting bar and lock the same within the recess in the head portion of the bolt member.

3. In a heddle frame, the means for supporting the heddle bars intermediate their ends, comprising a bolt member mounted in the heddle frame rail, said bolt member having a head portion provided with attened sides and a recess in which the heddle supporting bar is positioned, the part of the head portion of said bolt member in which the recess is located being widened thereby to provide a shoulder, a sleeve member slidably mounted on and extending entirely around said head portion, said sleeve member having a portion for contact with said shoulder to limit the movement of said sleeve toward the end of said head portion, and a spring for impelling said sleeve member to locking position, said sleeve member having at one end thereof portions extending along said flattened sides and engaging the heddle supporting bar to lock the same within the recess in the head portion of the bolt member, said sleeve member also having symmetrically disposed ears at its other end extending outwardly on both sides thereof adapted to be engaged by the fingers of the operator to withdraw the sleeve member from the locking position.

4. In a heddle frame, the means for supporting the heddle bars intermediate their ends, comprising a bolt member mounted in the heddle frame rail, said bolt member having a head portion provided with attened sides and a recess in which the heddle supporting bar is positioned, the part 0f the head portion of said bolt member in which the recess is located being widened thereby to provide a shoulder, a sleeve member slidably mounted on and extending entirely around said head portion limited in its movement toward the end 0f said head portion by said shoulder, and a spring having one end bearing against said sleeve member and tending to impel the same to locking position, said sleeve member having at one end thereof portions extending along said flattened sides and engaging the heddle supporting bar to lock the same within the recess in the head portion of the bolt member, said sleeve member also having symmetrically disposed ears extending outwardly on both sides thereof adapted to be engaged by the fingers of the operator to withdraw the sleeve member from the locking position.

5. In a, heddle frame, the means for supporting the heddle bars intermediate their ends, comprising a bolt member mounted in the heddle frame rail, said bolt member having a head portion provided with flattened sides and a recess in which the heddle supporting bar is positioned, the part of the head portion of said bolt member in which the recess is located being widened thereby to provide a shoulder, a sleeve member slidably mounted on said head portion limited in its movement toward the end of said head portion by said shoulder, a spring having one end bearing against said sleeve member and tending to impel the same to locking position, said sleeve member being made of a single piece of sheet metal eX- tending entirely around said head portion and having extensions at one end on each side provided with recesses to engage the heddle supporting bar and lock the same within the recess in the head portion of the bolt member, said sleeve member also having symmetrically disposed ears at its other end extending outwardly on both sides thereof adapted to be engaged by the ngers of the operator to withdraw the sleeve member from the locking position.

6. In a heddle frame, the means for supporting l the heddle bars intermediate their ends, comprising a bolt member mounted in the heddle frame rail, said bolt member having a head portion provided with flattened sides and a recess in which the heddle supporting bar is positioned the part of the head portion of said bolt member in which the recess is located being widenedthereby to provide a shoulder, a sleeve member slidably mounted on said head portion limited in its movement toward the end of said head portion by said shoulder, and4 a spring having one end bearing against said sleeve member and tending to impel the same to locking position, said sleeve member being made of a single piece of sheet metal shaped to provide a portion extending entirely around a part of the head portion of the bolt member and extensions at one end on each side of the head portion of the bolt member provided with recesses to engage the heddle supporting bar and lock the same within the recess in the head portion of the bolt member, said sleeve member also having symmetrically disposed ears at its other end extending outwardly on both sides thereof adapted to be engaged by the ngers of the operator to Withdraw the sleeve member from the locking position.

JOHN JACOB KAUFMANN. 

